Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 37190

Hash
0000025b15aff4f2baf323f1d980a5505756237fda6c3dcc86d2d355f03885d5
Confirmations
4969
Time
2026-10-30 15:56:37 UTC
Median time
2026-10-30 15:48:44 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0016063508
Bits
1e026e85
Merkle root
080d05d05cbe74e134dcd0d681d24a19741097ee4c1a2f219aa5c8167337a130
Previous block
000001186d907d65b8a391a87fce6b412ed6b796619949ed1dfeccbd87045285
Next block
00000231a64090115cab55c642c8e4f3be249a1c5c813fdd93bf081a35216638

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 37190 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
9620b5d866075bf3c19bc1995c5f1a65… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
080d05d05cbe…c8167337a130 coinbase1250